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Curated tech Twitter/X posts on AI, startups, and product development—signal without the doomscroll, updated on weekdays.
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GPT-5.4 and GPT-5.4 Pro from @OpenAI on ARC-AGI Semi Private ARC-AGI-2: - GPT-5.4: 74.0%, $1.52/task - GPT-5.4 Pro: 83.3%, $16.41/task
